856211-59-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 856211-59-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,6,2,1 and 1 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 856211-59:
(8*8)+(7*5)+(6*6)+(5*2)+(4*1)+(3*1)+(2*5)+(1*9)=171
171 % 10 = 1
So 856211-59-1 is a valid CAS Registry Number.